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TRUSTED BY CLAYTON, DE HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon92
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Clayton, DE

*The Angi rating for Heating And Air Conditioning Service companies in Clayton, DE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Clayton, DE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on June 28, 2026

Find Heating and air conditioning pros in Clayton

Avatar for Aire Serv of Newark & Middletown
Aire Serv of Newark & Middletown
4.7(
38
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving Clayton, DE and surrounding areas

Approved

In business since 1992

Free estimates

Emergency services offered

"I would like to thank Adrian Gomez for recommending me to have my duct/vents cleaned! Aire serv sent out Bryson and he did a fantastic job. He took his time and I haven’t seen my vents more clean. Im due to have a baby in a couple weeks and now know my air quality is so much better. I highly recommend this awesome team!!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+128

22 neighbors recently requested a quote
Recommended by85%of homeowners
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Avatar for One Hour Heating & Air Conditioning
One Hour Heating & Air Conditioning
4.4(
108
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+6 more

Serving Clayton, DE and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Just wanted to acknowledge the techs, especially Matt, from Calvert Commercial HVAC, for diagnosing what the issue was with the salon HVAC unit and repairing same. The hole was caused by the wire laying on top of the copper tubing, and as you can see the wire's sheathing was missing. Hole repaired, wire repaired, salon now toasty again. It always pays to get a second opinion. Once again, thanks Matt and Rich, for a job well done."
Project Photos
Response time3 days
Response rate100%
20 neighbors recently requested a quote
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Avatar for Aire Serv of Middletown
Aire Serv of Middletown
4.8(
15
)
Central A/C - InstallCentral A/C - Service or RepairElectric Furnace / Forced Air Heating System - Install+16 more

Serving Clayton, DE and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"great service showed up when they said they would and fixed unit on a holiday"
AC Tune-Up
AC Tune-Up
Mini Split System Outdoor Unit Installation
Mini Split System Outdoor Unit
Mini Split System Outdoor Unit

+63

Recommended by85%of homeowners
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Avatar for Horizon Services, LLC (DE)
Horizon Services, LLC (DE)
3.8(
1,298
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+1 more

Serving Clayton, DE and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Excellent work. The twp.Inspector even remarked that the installers did a great job ."
Horizon Services HVAC
Horizon Services HVAC
Horizon Services HVAC
Horizon Services HVAC
Horizon Services HVAC

+18

15 neighbors recently requested a quote
Recommended by89%of homeowners
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Avatar for Prism Enterprises Parent Company, LLC
Prism Enterprises Parent Company, LLC
4.6(
393
)
Air Ducts & Vents - Clean

Serving Clayton, DE and surrounding areas

Approved

In business since 1982

Free estimates

Emergency services offered

"Mark and helper climbed their ladder outside to the Soffit under the roof overhanging. They cleaned the vent and ran a brush all the way down to the clothes dryer. Now my clothes are dry and the amount of dust has increased due to the opened pathway. Any dust that came outside was cleaned up. Great job. Thanks!"
Scramble?
4 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Lawson Home Services, LLC
Lawson Home Services, LLC
4.6(
60
)
Air Ducts & Vents - Clean

Serving Clayton, DE and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Service man was very polite, knowledgeable and friendly. Clean up was great and really explained the importance of having our vents cleaned. Already recommended Larson to a neighbor."
Metal Door Crawlspace Entrace
Turtl Crawlspace Entrance
Attic Air Leaks
Attic Air Sealing
Garage Loft Ready for Sprayfoam

+137

Response time9 hrs
154 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for Done Right Today, Inc.
Done Right Today, Inc.
4.8(
581
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairThermostat - Install or Replace+5 more

Serving Clayton, DE and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I had Montrell install some gas pipe for a dryer hook up. He is an absolute professional. Above and beyond what I expected. He was so good, I asked for him by name the next time I needed plumbing done. He connected my fridge water line."
My jobs
My jobs
My jobs
My jobs
Response time1 day
Response rate100%
274 neighbors recently requested a quote
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Avatar for Elite HVAC-R Service
Elite HVAC-R Service
5.0(
4
)
Electric Furnace / Forced Air Heating System - RepairCentral A/C - Service or RepairElectric Boiler or Radiator Heating System - Repair+12 more

Serving Clayton, DE and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Very good job. Very pleased. Definitely recommend Elite HAVC."
2 neighbors recently requested a quote
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Avatar for Chimney Experts
Chimney Experts
4.9(
141
)
Air Ducts & Vents - Clean

Serving Clayton, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Emergency services offered

Warranties offered

"The technician, Steve, called me 25 minutes prior to his arrival. He was extremely knowledgeable about my gas fireplace. He vacuumed all areas. He informed me of the condition of the components. I was prepared to ask him a handful of questions that he was able to answer. My fireplace works very well and I strongly recommend using the Chimney Experts."
Chimney Cap Installation
Smoke chamber before
Chimney Sweep Project
Fireplaces Project
Chimney Sweep Project

+36

Response time4 days
Response rate100%
35 neighbors recently requested a quote
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Heating and Air Conditioning questions, answered by experts

To diagnose a bad HVAC or AC damper, assess the airflow from your vents. For a manual damper, close it, run your system, and check for airflow. If air is still coming through the vents, the damper is likely faulty and needs repair or replacement. For an automatic damper, turn on your HVAC system and monitor the airflow and room temperature. Signs of a problem include low airflow, a room that won't maintain its set temperature, or a drafty feeling. If you suspect a faulty automatic damper, you may need to hire a professional for repairs.

The general rule of thumb for figuring out how much AC tonnage you need in your home is that for every 500 to 600 square feet of space you need to cool, you’ll need one ton of AC cooling power. So, a 1,000-square-foot home will need 2 tons of AC power. 

AC drip pans last five to 20 years, depending on the material. Plastic AC drip pans last five to 10 years, while metal pans can last over 10 years. Plastic AC drip pans are vulnerable to cracking in response to temperature changes. Metal drip pans are prone to rusting over time, which can also lead to leaks.

AC evaporator coils should be cleaned at least once per year to keep your unit in good condition. For optimal performance, consider cleaning them twice a year—once before and once after the main cooling season. More frequent cleanings may be necessary for older systems, units with performance issues, or those in climates with high levels of humidity, dust, and dirt.

Yes, you can run an attic fan with the AC on. In fact, you don’t have a choice with a passive attic fan. Plus, when an attic fan draws out hot air from the attic, it helps regulate the temperature of your whole home, so your AC doesn't have to work as hard.

The Clayton, DE homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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